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ive just damaged my CCD camera :-(
Well if we didnt experiment we wouldnt get anywhere, however heres a word of
warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley |
#2
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ive just damaged my CCD camera :-(
On Sun, 12 Oct 2003 10:05:02 +0100, "Hayley"
wrote: Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley Hayley, I am puzzled that you should do this? If you join the groups relating to your CCD camera (eg StarlightExpress), people will explain exactly how to treat the camera. Your reasoning is peculiar because noise is not 'reduced' by such things. Are you pulling our legs? BTW, it may not be damaged. Check out the manufacturer and forums before giving up. The chip may simply have 'gunge' on it. regards Lawrence |
#3
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ive just damaged my CCD camera :-(
On Sun, 12 Oct 2003 10:05:02 +0100, in uk.sci.astronomy , "Hayley"
wrote: Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. AFAIR they're a ceramic glued to the substrate and the connectors are soldered on. Most likely the rapid cooling cracked the ceramic or one of the connections. You need to cool things SLOWLY.... -- Mark McIntyre CLC FAQ http://www.eskimo.com/~scs/C-faq/top.html CLC readme: http://www.angelfire.com/ms3/bchambless0/welcome_to_clc.html ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#4
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ive just damaged my CCD camera :-(
I only wish I was.... I dont belong to any of the forums on CCDs, I didnt
spray the front part where light enters I sprayed the electronics side I though it would be risky if I went over board with the cooling, but it was only a short spray, i was shocked, I will look at it today. I thought CCDs were cooled for electronic noise reduction?, Hayley "Lawrence" lawrence@astronomer wrote in message s.com... On Sun, 12 Oct 2003 10:05:02 +0100, "Hayley" wrote: Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley Hayley, I am puzzled that you should do this? If you join the groups relating to your CCD camera (eg StarlightExpress), people will explain exactly how to treat the camera. Your reasoning is peculiar because noise is not 'reduced' by such things. Are you pulling our legs? BTW, it may not be damaged. Check out the manufacturer and forums before giving up. The chip may simply have 'gunge' on it. regards Lawrence |
#5
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ive just damaged my CCD camera :-(
Lawrence wrote:
Your reasoning is peculiar because noise is not 'reduced' by such things. Are you pulling our legs? Noise is most certainly reduced by lowering temperatures, but only by applying SLOW cooling to prevent shock damage. In a lifetime in electronics, I have never even posessed a can of freezer spray, let along shot a blast into sensitive electronics. Do you know it is definitely dead ? What are the symptoms ? Steve |
#6
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ive just damaged my CCD camera :-(
"Hayley" wrote in message ... Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. Hi Hayley, Not a good idea :-( (Cooling is good but needs to be done slowly to allow everything to contract together)You might be lucky though and have just revealed a dry solder joint. (freezer sprays can be used to make intermittent dry joint problems permanent and therefore easier to trace) It might be worth while just checking over the joints in the area. Robin |
#7
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ive just damaged my CCD camera :-(
Robin Leadbeater wrote:
"Hayley" wrote in message ... Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. Hi Hayley, Not a good idea :-( (Cooling is good but needs to be done slowly to allow everything to contract together)You might be lucky though and have just revealed a dry solder joint. (freezer sprays can be used to make intermittent dry joint problems permanent and therefore easier to trace) It might be worth while just checking over the joints in the area. Robin Good point Robin. Hayley - I have tackle at work to reflow the joints, and to look for obvious defects. If you give up, I'll take a quick look at it. No guarantee of course. Steve |
#8
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ive just damaged my CCD camera :-(
In message , Hayley
writes Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley Oops! sorry to hear about your accident. You may get the chip back by reflowing the solder joints on the board, but it's not easily done without cooking the chip. The chip may be physically damaged (cracked) but its possible that one or more other components on the board are fried as many freezer sprays are great conductors and will short-circuit everything. -- ********************************** Denis Taylor two ears, one mouth, think first. ********************************** |
#9
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ive just damaged my CCD camera :-(
Thanks to everyone for their advice, I will be looking at it tonight,
I will let everyone know how I get on ( my DIY electric focuser has been put on hold) Hayley "Denis Taylor" wrote in message ... In message , Hayley writes Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley Oops! sorry to hear about your accident. You may get the chip back by reflowing the solder joints on the board, but it's not easily done without cooking the chip. The chip may be physically damaged (cracked) but its possible that one or more other components on the board are fried as many freezer sprays are great conductors and will short-circuit everything. -- ********************************** Denis Taylor two ears, one mouth, think first. ********************************** |
#10
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ive just damaged my CCD camera :-(
Next time try boiling water - in lieu of that drink ten beers and hit your
head with a hammer. Hope this helps! Mr Fix It Hayley wrote: Thanks to everyone for their advice, I will be looking at it tonight, I will let everyone know how I get on ( my DIY electric focuser has been put on hold) Hayley "Denis Taylor" wrote in message ... In message , Hayley writes Well if we didnt experiment we wouldnt get anywhere, however heres a word of warning. last night i tried spraying freezer spray on the ccd chip of the camera, with the idea of reducing noise and even though it was only a short 5 second spray the CCD chip Died. SOB SOB Hayley Oops! sorry to hear about your accident. You may get the chip back by reflowing the solder joints on the board, but it's not easily done without cooking the chip. The chip may be physically damaged (cracked) but its possible that one or more other components on the board are fried as many freezer sprays are great conductors and will short-circuit everything. -- ********************************** Denis Taylor two ears, one mouth, think first. ********************************** |
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